Claude Code, Codex, Cursor, and npx skills plugin that enables your AI tools with a Slack MCP Server and Slack Developer Skills.
Install
npx skills add slackapi/slack-skills-plugingh skill install slackapi/slack-skills-plugingit clone --depth 1 https://github.com/slackapi/slack-skills-pluginSkills in this collection
- Block KitSlackAPIUse when a developer wants to build or validate Block Kit layouts for Slack messages, modals, or Home tabs: message layouts, modals/forms/dialogs, Home tab interfaces, interactive buttons or menus, or modifying existing Block Kit JSON.
- Create Slack AppSlackAPIUse when a developer wants to create, scaffold, or bootstrap a new Slack app or agent from scratch with the Slack CLI. Covers prerequisites, authentication, choosing a workspace to install into, and creating a project from a Bolt (JS or Python) template locally. Trigger on "create a Slack app", "new Bolt app", "start a Slack agent".
- Deploy Slack AppSlackAPIUse when a developer wants to deploy, host, or run a Slack app somewhere it keeps working after the local process stops, or mentions Railway, Heroku, `railway up`, `git push heroku`, `slack deploy`, a `deploy` hook in `.slack/hooks.json`, hosting a Socket Mode or Request URL (HTTP) Bolt app, deploying from Windows, graduating an app out of a developer sandbox, or tearing down a deployed app.
- Slack APISlackAPIUse when a developer asks which Slack Web API method does something, needs a method's OAuth scopes or token type, wants to call or test a family.method endpoint (chat.postMessage, conversations.history, users.info, views.open), is handling cursor pagination (next_cursor) or rate limits (tier/ratelimited/Retry-After), or is debugging errors like missing_scope, invalid_auth, or channel_not_found.
- Slack CliSlackAPIUse when a developer works with the Slack CLI (slack command) to create, run, or manage a Slack app from the terminal: logging in or authenticating (slack login), adding a team or switching workspaces, running locally (slack run), deploying, editing the app manifest, calling Web API methods (slack api), or searching Slack docs (slack docs search).
- Slack DocsSlackAPIUse when answering a conceptual or how-to question about Slack platform features, or when asked to look up, fetch, or summarize a docs.slack.dev page, including a pasted docs.slack.dev link. Covers finding and reading official Slack docs as clean markdown.
- Slack MessagingSlackAPIUse when writing, drafting, scheduling, or improving a Slack message, announcement, or reply sent via the Slack MCP tools (slack_send_message, slack_send_message_draft, slack_schedule_message). Covers Slack markdown formatting, message structure, thread etiquette, reactions, and scheduling, and points to the right dialect for canvases and Block Kit.
- Slack SearchSlackAPIUse when locating messages, files, channels, or people across Slack, or gathering context before answering, with the search MCP tools (slack_search_public, slack_search_public_and_private, slack_search_channels, slack_search_users). Covers search modifiers (in:, from:, before:), file-type filters, natural-language vs. keyword search, and reading results in context.
- Test Slack AppSlackAPIUse when a developer wants to test, try out, smoke-test, verify, or confirm that a Slack app built with the Slack CLI (or a plain Bolt app) actually works, by running it in a developer sandbox or a Free Team, never a workspace with real users, with `slack run` and exercising its real slash commands, shortcuts, events, actions, modals, App Home, and assistant surfaces.